France
Charles VI (1380-1422) gold Écu d'or à la couronne ND, Poitiers mint, 5th emission, from 2 November 1411, Fr-291, Dup-369D, MS63 NGC. + KARΘLVS : DЄI : GRACIA : FRAnCORVM : RЄX, crowned arms of France / + XPC : VIИCIT : XPC : RЄGИAT : XPC : IИPЄRAT, cross fleurée, a star in the center; all within a quadrilobe with lis at points and crowns in spandrels. A lustrous example, beautifully detailed with little striking weakness.
Estimate: 1000-1250 USD